Re: [Zennie] How do you pack?
Interesting questions, and something I've been thinking on and discussing with others quite a bit of late. In Malaysia, I made 30 slider-up jumps in 8 days which equates to alot of packing. About half were from Petronas, with real object-strike potential. The other half were from KL Tower, very overhung.
I experimented with things like flaking the bottomskin or not, general tidying of the cells prior to clamping to put in the container, being really careful the risers are perfectly equal with line tension, etc. Plus I did some rather fast (7 minute) pack jobs.
Based on this and past experience, here is what I personally think - and what I do with own packing and jumping. I believe that:
- much of the general "tidying" of packjobs that we do when turning a 20 minute job into a 40 minute job doesn't really help much on slider-up jumps. Symmetry is important, yes, but essentially if the canopy is "symmetrically messy" I believe off-heading probability goes up little, if at all.
- making sure lines are tight and not tangled, and making sure the slider is cleanly packed, free of obstructions, stabilizers are not clogging the slider, etc. is very, VERY important. People die and get horribly injured from tension knots and sliders stuck for other reasons. I've had a good friend come very close to going in with a slider hang-up, and know of many other similar cases. Sliders are super dangerous - take the extra time to make sure it is clear, clear, clear.
- Nose symmetry in the packjob is somewhat important. As one works backwards in the canopy, general cleanliness of the flaking is progressively less important. Tail flaking procedures are all but irrelevant. Don't waste time fussing with the tail, save to make sure it covers the packjob cleanly before putting into the container.
- procedures for rolling, micro-reefing, or opening the nose do have an effect on opening speed slider-up. Experiment and come up with systems for nose packing that work for you, and make sense to you.
- the more tricks you use to slow a slider-up deployment, the higher the chance of snivel (by definition) and off-heading/line twists. Others may well disagree with me on this. However, I lost a dear friend to a snivelly opening this year and I'd much rather have a fucking spanker of an opening than have a snivel that injures me for life. Of course, if we are talking about terminal openings far from objects, that's a different issue; I don't do much jumping like that - more of my stuff is "survival jumping" at heart.
- procedures for settling the lines into the tailpocket are very important. Do this wrong - or sloppy - and tension knot probability goes up exponentially. Learn to settle those lines in fast but clean. Start the loops bigger than you end them, so that the loops at the bottom of the lines are too small to get all the way around the loops at the top, decreasing risk of entanglement (thanks to DW for this trick).
- securely closing the tail pocket is really important - do this sloppy and you might have line dump. line dump can turn into tension knots, i.e. death.
So basically this is my theory. I believe that it is essential to focus on those areas of a packjob that are really, really essential - and NEVER NEVER to fuck those up. Not once.
But much of the rest of the fussing and flapping over making the cells look "clean" is essentially worthless in getting better openings. Maybe not worthless entirely, but very much subject to diminishing returns. If I take an extra 5 minutes on a 15 minute pack job, I get a cleaner pack - however, if I take an extra 5 minutes on a 30 minute packjob, I'm essentially wasting my time.
Packing is a really personal thing; I know several very experienced jumpers who swear they'd never (never never) jump my "sloppy saturday night massacre packjobs" as one Aussie called them. However, I believe that I spend as much or more time when packing worrying about the really essential items as anyone else does. . . I just don't waste lots of time making the packing look all neat and tidy.
Slider down packing, I think, has some different dynamics at play in some areas - but I don't know many folks jumping slider down that really need to know how to pack a bit quicker while being safe. Mostly, when we are on a BASE rampage it is on legal, slider-up objects (Europe, South Africa, Malaysia, TF which many folks jump slider-up) and it is here where learning how to safely turn 45 minute pack jobs into 15 minute ones can essentially triple jumping volume.
I also think packing is much about a "flow" one develops from hands-on experience. I've learned lots of packing tricks from simply watching others pack, and thinking about how their techniques differ from others. I've also had super teachers to show me what they've learned in years of thinking about packing which I think is a blessing.
Standard caveats apply: don't try this at home; your mileage may vary; some assembly required; professional stunt jumpers pictured; do as I say not as I do; etc.
Peace,
D-d0g
ddog@wrinko.com
www.wrinko.com